<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <script>
      // const a = { name: 'lili' };
      // const b = a;
      // b = {};
      // a={}
      // a.name;

      function Rabbit() {
        // this = {
        //   __proto__:Rabbit.prototype
        // }
        // return this;
      }
      Rabbit.prototype = {
        eats: true,
      };
      let rabbit = new Rabbit();
      // delete rabbit.eats;
      delete Rabbit.prototype.eats;
      console.log(rabbit.eats); // undefind
    </script>
  </body>
</html>
